User's Manual
Table Of Contents
DOC#NCP-R4600 GEN2-SOW
1 NDL requirements
Power
Floating wide range DC input to support EN50155:2017 and ignition input to control system power plus
initiate graceful operating system shutdown. The ignition control signal is to be referenced to input supply
voltage as requested by NDL and is detailed in Section 2 Product Specifications. A flow diagram is shown
under 6.2 power ignition control.
A TVS diode is fitted between the plus and minus power inputs, there are no voltage clamping devices
between these inputs and the chassis. A standard 1000VAC voltage withstand test with shorted plus –
minus is supported.
From EN 50155:2017:-
13.4.9.3 Voltage withstand test
Nominal battery voltage and/or I/O voltage Test voltage
72 V DC ≤ V DC < 125 V DC
or from 50 to 90 V AC rms
1 000 V AC or 1 500 V DC